Table 1.

LD50 of pancreatic cell lines of sodium porfimer and verteporfin-PDT. After 6 h of incubation with sodium porfimer or verteporfin followed by photoradiation at a light dose of $60{\mathrm{J}/\mathrm{cm}}^2$ (PDT) for 2 min and incubation for another 96 h, comparable dead cell rates were found in pancreatic cell lines. LD50 was counted by SPSS19.0 software.

Cell lines	Photosensitizer
	Sodium porfimer ($\mu \mathrm{g}/\mathrm{ml}$)		Verteporfin ($\mu \mathrm{g}/\mathrm{ml}$)
	LD50	95% CI	LD50	95% CI
HPNE	0.44	0.32 to 0.58	0.005	0.005 to 0.006
BxPC-3	0.85	0.59 to 1.21	0.008	0.006 to 0.012
CAPAN-2	1.29	0.90 to 1.87	0.016	0.013 to 0.019
MIA PaCa-2	1.02	0.60 to 1.75	0.015	0.011 to 0.020
PANC-1	0.77	0.50 to 1.16	0.007	0.006 to 0.008